Product Price SKU Quantity Subtotal Mineral Study Kit basic Mineral Study Kit basic quantity × $27.95 SKU: ESE53667 Subtotal: $27.95 Remove $27.95 ESE53667 Mineral Study Kit basic quantity $27.95 Sound Sensor Sound Sensor quantity × $117.19 SKU: ESD50151 Subtotal: $117.19 Remove $117.19 ESD50151 Sound Sensor quantity $117.19 ELECTROSTATIC RODS, EBONITE ROD. ELECTROSTATIC RODS, EBONITE ROD. quantity × $2.43 SKU: ESP59193 Subtotal: $2.43 Remove $2.43 ESP59193 ELECTROSTATIC RODS, EBONITE ROD. quantity $2.43 Relative Humidity Sensor Relative Humidity Sensor quantity × $168.94 SKU: ESD50034 Subtotal: $168.94 Remove $168.94 ESD50034 Relative Humidity Sensor quantity $168.94 Photogate Photogate quantity × $78.65 SKU: ESD50091 Subtotal: $78.65 Remove $78.65 ESD50091 Photogate quantity $78.65 Coupon: Clear shopping cart Update cart Basket totals Subtotal $395.16 Total $395.16 Proceed to checkout Continue shopping